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Abstract:

The history of comandra rust infection in lodge-pole pine in the Rocky Mountains was traced by dating cankers in infested stands from northern Utah to central Montana. Analysis of infection of 730 cankers showed that throughout the region the rust had remained endemic for almost 100 years, then increased to epidemic proportions between about 1910 and 1945. The rarity of cankers less than 10 years old indicates that infection by the rust has subsided again to an endemic level. Older cankers are abundant and are likely to cause increasing damage for a few years, even without now infections.

Document Type: Journal Article

Affiliations:
Plant pathologist, Intermountain Forest and Range Expt. Sta., Forest Service, U.S. Dept. Agric., and is stationed at the Forestry Sciences Laboratory in Logan, Utah, maintained in cooperation with Utah State University

Publication date: July 1, 1965

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The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.